Repositório Institucional UNIFRAN Artigos
Use este identificador para citar ou linkar para este item: https://repositorio.cruzeirodosul.edu.br/jspui/handle/123456789/3933
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dc.creatorGuedes-Sobrinho, Diego-
dc.creatorOrenha, Renato P.-
dc.creatorParreira, Renato Luis Tame-
dc.creatorNagurniak, Glaucio R.-
dc.creatorSilva, Gabriel Reynald da-
dc.creatorPiotrowski, Maurício J.-
dc.date.accessioned2022-06-28T19:31:06Z-
dc.date.available2022-06-28T19:31:06Z-
dc.date.issued2022-06-13-
dc.identifier.issn1463-9076pt_BR
dc.identifier.urihttps://repositorio.cruzeirodosul.edu.br/handle/123456789/3933-
dc.description.abstractThe complexity of Cu13, Ag13, and Au13 coinage-metal clusters was investigated through their energy contributions via a density functional theory study, considering improvements in the PBE functional, such as van der Waals (vdW) corrections, spin–orbit coupling (SOC), Hubbard term (+U), and their combinations. Investigating two-dimensional (planar 2D) and three-dimensional (distorted 3D, CUB – cuboctahedral, and ICO – icosahedral) configurations, we found that vdW corrections are dominant in modulating the stability swapping between 2D and ICO (3D) for Ag13 (Au13), whereas for Cu13 its role is increasing the relative stability between 2D (least stable) and 3D (most stable), setting ICO as the reference. Among the energy portions that constitute the relative total energy, the dimensionality difference correlates with the magnitude of the relative dispersion energy (large for 2D/ICO and small for 3D/ICO) as the causal factor responsible for an eventual stability swapping. For instance, empirical vdW corrections may favor Ag13 as ICO, while semi empirical ones tend to swap the stability by favoring 2D. The same tendency is observed for Au13, except when SOC is included, which enlarges the stability of 3D over 2D. Energy decomposition analysis combined with the natural orbitals for the chemical valence approach confirmed the correlations between the dimensionality difference and the magnitude of the relative dispersion energies. Our structural analysis protocol was able to capture the local distortion effects (or even their absence) through the quantification of the Hausdorff chirality measure. Here, ICO, CUB, and 2D are achiral configurations for all coinage-metal clusters, whereas Cu13 as 3D presents a slight chirality when vdW correction based on many body dispersion is used, at the same time Ag13 as 3D turned out to be chiral for all calculation protocols as evidence of the role of the chemical composition. Palavras-chave: metal clusters, Au13, Ag13, Cu13, 2D/3D stabilitypt_BR
dc.languageengpt_BR
dc.publisherUniversidade de Francapt_BR
dc.relation.ispartofPhysical Chemistry Chemical Physicspt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectmetal clusterspt_BR
dc.subjectAu13pt_BR
dc.subjectAg13pt_BR
dc.subjectCu13pt_BR
dc.subject2D/3D stabilitypt_BR
dc.titleThe effect of different energy portions on the 2D/ 3D stability swapping for 13-atom metal clusters†pt_BR
dc.typeArtigo de Periódicopt_BR
dc.identifier.doihttps://doi.org/10.1039/D2CP00148Apt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.initialsUNIFRANpt_BR
dc.subject.cnpqCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICApt_BR
dc.citation.volume24pt_BR
dc.citation.issue11pt_BR
dc.citation.spage6515pt_BR
dc.citation.epage6524pt_BR
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